In an embodiment, an injection simulation device is provided. The injection simulation device may include a housing defining an opening, the housing having a proximal end and a distal end, a plunger movable relative to the housing, the plunger comprising a first interfacing portion, and distal movement of the plunger initiates an injection simulation, a rotatable component comprising a proximal end and a distal end, and an aperture extending between the proximal and distal ends of the rotatable component for receiving a portion of the plunger, rotatable component comprising a second interfacing portion for interfacing with the first interfacing portion to rotate the rotatable component when the plunger is moved toward the proximal or distal end of the housing. The injection simulation device may further include a stationary component defining a cavity for receiving the rotatable component, the cavity comprising a fluid, wherein movement of the plunger causes rotational and axial movement of the rotatable component, such that an interface between the rotatable component and the stationary component causes an increase in resistance during distal movement of the plunger, and a decrease in resistance occurs upon proximal movement of the plunger.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The injection simulation device of claim 1, further comprising one or more sealing members disposed between the rotatable component and the stationary component to seal the fluid within the cavity.
3. The injection simulation device of claim 1, wherein one of the first interfacing portion or the second interfacing portion comprises a threaded portion and the other of the first interfacing portion or the second interfacing portion comprises a threaded receiving portion.
4. The injection simulation device of claim 1, wherein the damping fluid comprises a damping grease.
5. The injection simulation device of claim 1, wherein distal movement of the plunger increases an interface between the rotatable component and the stationary component.
6. The injection simulation device of claim 1, wherein proximal movement of the plunger decreases an interface between the rotatable component and the stationary component.
7. The injection simulation device of claim 1, further comprising a biasing member associated with the plunger.
8. The injection simulation device of claim 1, wherein an inner surface profile of the stationary component is complementary to an outer surface profile of the rotatable component.
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June 28, 2018
October 22, 2024
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